My very first misfire

It happened today at the range. I was shooting my Sigma 9mm and the ammo was WWB 9mm 115 fmjs. I squeezed the trigger and it clicked. I held it in case of hang fire then ejected it. got a dimple in it so I put it back in the mag and it fired.

Bad primer? My Sigma had over 1200 rnds without problems.

Also I had one that was undercharged that the casing barely cleared the chamber and blocked the slide from closing. I guess you can say that's my very first FTE.

The rest of the session went fine so I'd say it's the ammo. I've shot a lot of Win ammo and this is the first time I had a failure. I had 5 PDX1 124 +Ps (out of 3 boxes) that had wrong bullets seated in them. That's the only other problem I had with Win.

This is why I like loading my own ammo. So far (knock on wood) I have not had a mis-fire from anything I have loaded.

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I just had a misfire on my last outing. I was shooting my Springfield XD45, I pulled the trigger,,, and nothing. I ran the slide and took right back off and finished both mags. I picked the cartridge up that was the misfire and I could see the dent in the primer. That primer was a federal. I put it back into the mag and racked it in and tried to fire it once more and it did fire. That was the first misfire that I can remember, except for the .22's.

Hard primers.. I have noticed WWB ammo has started with military marked cases. I believe this is due to the mega ammo contracts the UN has been filling so Olin corp has just standardised thier components. means they are loading military grade primers and WCC marked cases. Some pistols just wont fire them reliably due to the hard primer. Stick em in an M9 or a Sig and theyll go bang all day long.